I'm following the tutorial to download content from webpage. http://developer.android.com/training/basics/network-ops/connecting.html#download (code is copied below so you don't have to go to this link)
It use len = 500 in this example and I change it to big value such as 50000 but while experimenting I realize this method will only download the first 4048 characters of a webpage no matter how large I set len to be. So I'm wondering if I should use another method to download web content.
Actually I'm not downloading normal webpage, I've put a php script on my server to search in my database then encode a json array as the content of the page, it's not very large, about 20,000 characters..
Main codes from the above link:
// Given a URL, establishes an HttpUrlConnection and retrieves
// the web page content as a InputStream, which it returns as
// a string.
private String downloadUrl(String myurl) throws IOException {
InputStream is = null;
// Only display the first 500 characters of the retrieved
// web page content.
int len = 500; // I've change this to 50000
try {
URL url = new URL(myurl);
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setReadTimeout(10000 /* milliseconds */);
conn.setConnectTimeout(15000 /* milliseconds */);
conn.setRequestMethod("GET");
conn.setDoInput(true);
// Starts the query
conn.connect();
int response = conn.getResponseCode();
Log.d(DEBUG_TAG, "The response is: " + response);
is = conn.getInputStream();
// Convert the InputStream into a string
String contentAsString = readIt(is, len);
return contentAsString;
// Makes sure that the InputStream is closed after the app is
// finished using it.
} finally {
if (is != null) {
is.close();
}
}
}
// Reads an InputStream and converts it to a String.
public String readIt(InputStream stream, int len) throws IOException, UnsupportedEncodingException {
Reader reader = null;
reader = new InputStreamReader(stream, "UTF-8");
char[] buffer = new char[len];
reader.read(buffer);
return new String(buffer);
}
